Demirce is a village in the Daday District of Kastamonu Province, Turkey. Its population is 108 (2022). It is 53 km from Kastamonu city center and 28 km from Daday.

Population

Historical population

Year	Pop.	±% p.a.
1997	219	—
2007	152	−3.59%
2012	144	−1.08%
2017	90	−8.97%
2022	108	+3.71%
Source: 1997 census and TÜIK (2007-2022)